Sample preparation mold
By using a detachable limiting block and polytetrafluoroethylene material in the sample preparation mold, the problems of low efficiency and sample damage in existing molds are solved, and efficient and non-destructive sample preparation is achieved.
Patent Information
- Application Number
- CN202520492035.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing sample preparation molds are inefficient in the sample production process, easily damage the sample during sampling, and have limited smoothing operation.
The sample preparation mold design includes a sample preparation base and multiple limiting blocks. The limiting blocks are detachably set on the support plate to form a through sample preparation space, which facilitates the smoothing operation. The sample can be obtained by removing the limiting blocks. Polytetrafluoroethylene material is used to reduce damage.
It improves sample preparation efficiency, ensures sample integrity, simplifies the smoothing and sampling process, and reduces the risk of sample damage.
Smart Images
Figure CN223864132U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a sample making mold. Background Technology
[0002] Adhesives, as substances with excellent bonding properties, are widely used in the aerospace industry. Compared with methods such as welding or mechanical joining, adhesive bonding offers advantages such as reduced structural weight, increased connection strength, and better sealing performance. Before the formal use of adhesives, standard samples need to be prepared using molds. Then, the vertical burning performance of the samples to be tested is examined. Only adhesives that meet the testing standards can be officially used. Currently, most molds used for sample preparation have a single sample preparation chamber, making the process of preparing the samples for testing time-consuming and inefficient.
[0003] Related technologies have proposed a molding die with multiple sample preparation cavities, which can simultaneously produce multiple samples, improving sample production efficiency. However, the sample preparation cavity is surrounded by two opposing baffles and at least three partitions. After the sample is prepared, in order to remove the sample from the sample preparation cavity, the entire mold needs to be lifted or a sampling tool needs to be used to press the sample out of the mold's sample preparation cavity. The sampling process may damage the sample. Furthermore, the sample preparation cavity is a four-sided closed cavity surrounded by baffles and partitions, which limits the smoothing operation of the sample. Utility Model Content
[0004] The purpose of this utility model is to provide a sample preparation mold that allows operators to easily smooth out samples and ensures the integrity of samples during the sampling process.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] This utility model proposes a sample preparation mold, comprising:
[0007] Sample preparation base, the sample preparation base is provided with a support plate surface;
[0008] Multiple limiting blocks are arranged parallel to each other and spaced apart in sequence along a first direction. They are detachably set on the bearing plate surface. Two adjacent limiting blocks enclose a sample preparation space on the bearing plate surface. Multiple limiting blocks enclose multiple sample preparation spaces on the bearing plate surface. The sample preparation spaces are arranged through each other in a second direction. The first direction and the second direction are set at an angle and are both parallel to the bearing plate surface.
[0009] Optionally, the limiting block and the sample preparation base are engaged.
[0010] Optionally, multiple grooves are provided on the surface of the bearing plate, and multiple limiting blocks correspond one-to-one with the multiple grooves, with the limiting blocks being fitted into the grooves.
[0011] Optionally, the groove is provided through in the second direction, and the length of the limiting block is greater than the length of the groove.
[0012] Optionally, the sample preparation mold also includes a fastener, one end of which passes through a groove into the limiting block, and the other end of which presses against the sample preparation base.
[0013] Optionally, the sample mold may also include a seal, which is clamped between the groove and the limiting block.
[0014] Optionally, the sample preparation base and the limiting block are respectively provided with magnetic parts with opposite magnetic properties.
[0015] Optionally, the limiting block is provided with two clamping blocks, and in the second direction, the sample base is clamped between the two clamping blocks of the limiting block.
[0016] Optionally, the mounting block is provided with an elastic pad, which is sandwiched between the mounting block and the sample preparation base in the second direction.
[0017] Optionally, the material of both the bearing plate and the limiting block includes polytetrafluoroethylene.
[0018] The beneficial effects of this utility model are:
[0019] This invention provides a sample preparation mold, including a sample preparation base and multiple limiting blocks. The multiple limiting blocks are parallel to each other and spaced apart sequentially along a first direction. The multiple limiting blocks and the supporting plate surface of the sample preparation base enclose multiple sample preparation spaces. The sample preparation mold can simultaneously prepare multiple samples, improving sample production efficiency. The sample preparation spaces are arranged through the sample preparation space in a second direction, making it easier for operators to smooth the samples placed in the sample preparation space and to directly scrape off excess length of the sample according to actual sample production needs. In addition, the limiting blocks are detachably mounted on the supporting plate surface of the sample preparation base. After the sample is prepared, the limiting blocks can be removed from the sample preparation base, and then the operator can obtain the sample. The method of obtaining the sample is simple and does not cause excessive damage to the sample during the sampling process, ensuring the integrity of the sample during sampling. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the sample preparation mold described in an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the sample preparation base described in an embodiment of the present invention.
[0022] In the picture:
[0023] 1. Sample base; 11. Groove; 2. Limiting block; 3. Sample preparation space. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0028] Example 1
[0029] like Figures 1-2As shown, this utility model proposes a sample preparation mold, which includes a sample preparation base 1 and multiple limiting blocks 2. The sample preparation base 1 is provided with a support plate surface. The multiple limiting blocks 2 are parallel to each other and sequentially spaced along a first direction on the support plate surface. Adjacent limiting blocks 2 enclose a sample preparation space 3 on the support plate surface for placing the sample to be tested. After setting multiple parallel limiting blocks 2, the limiting blocks 2 and the support plate surface enclose multiple sample preparation spaces 3 to simultaneously prepare multiple samples, improving the sample preparation efficiency. In this embodiment, five or more limiting blocks 2 are provided to enclose at least four sample preparation spaces 3. The sample preparation spaces 3 are arranged through a second direction at an angle to the first direction, providing convenience for the operator to perform smoothing operations. When the sample to be prepared is placed in the sample preparation space 3, the operator can also easily scrape off the excess length of the sample according to the actual sample preparation requirements. It should be noted that the first direction and the second direction described in this utility model are both parallel to the surface of the bearing plate. The first direction is the length extension direction of the sample base 1, and the second direction is the width extension direction of the sample base 1, which will not be described again hereafter.
[0030] To limit sample damage during sampling, multiple limiting blocks 2 are detachably mounted on the support plate surface. After the sample to be prepared is completed, multiple samples can be obtained simply by removing the limiting blocks 2 from the support plate surface. The sample acquisition method is simple and the sampling process does not cause excessive damage to the samples. To ensure the integrity of the samples during sampling, both the support plate surface and the limiting blocks 2 are made of polytetrafluoroethylene (PTFE). PTFE has an extremely low coefficient of friction, excellent self-lubricating properties, and a stable internal structure. It exhibits non-stick properties to most substances. When PTFE is used to make the support plate surface and limiting blocks 2, the finished samples will not leave any residue on the support plate surface and limiting blocks 2. The sample demolding process can proceed smoothly, the sample preparation mold is highly reusable, and it is not prone to structural damage during sampling. To improve the demolding process, a release film can also be pre-laid on the support plate surface. To save on the manufacturing cost of the sample preparation base 1 and facilitate its processing, the sample preparation base 1 can be processed into a thin plate.
[0031] Specifically, the limiting block 2 and the sample base 1 are interlocked, which simplifies the installation process of the limiting block 2 and provides a clear installation position for the limiting block 2.
[0032] More specifically, multiple grooves 11 can be formed on the surface of the support plate, with multiple limiting blocks 2 corresponding one-to-one with the multiple grooves 11. When a sample needs to be prepared, the limiting blocks 2 are snapped into the grooves 11, and the multiple limiting blocks 2 and the support plate surface of the sample preparation base 1 together form multiple sample preparation spaces 3. By forming grooves 11 on the surface of the support plate and snapping the limiting blocks 2 into the grooves 11, the assembly portability of the sample preparation mold is improved, the installation operation is simple, and the connection between the limiting blocks 2 and the support plate surface is relatively stable.
[0033] In this embodiment, the groove 11 is provided through the second direction, and the length of the limiting block 2 is greater than the length of the groove 11, so that its end protrudes relative to the side wall of the sample base 1, thereby facilitating the removal of the limiting block 2 from the groove 11.
[0034] The sample preparation mold may also include fasteners. One end of the fastener passes through the groove 11 into the limiting block 2, and the other end presses against the sample preparation base 1. The fasteners further enhance the connection strength between the limiting block 2 and the bearing plate surface. At least two fasteners can be inserted into each limiting block 2. The fasteners can be screws or bolts, etc. For easy assembly, threaded holes can be pre-machined in the limiting block 2 and through holes can be opened at the bottom of the groove 11, reducing the time required to assemble the sample preparation mold. The fasteners pass through the groove 11 from bottom to top into the limiting block 2, without protruding from the top surface of the limiting block 2, which also ensures the smoothness of the upper surface of the limiting block 2. This avoids interference from the fasteners when operators use scrapers or other tools to smooth the surface, thus making the surface of the sample produced by the sample preparation mold smooth and ensuring the manufacturing quality of the sample.
[0035] Due to machining errors during actual processing, gaps may exist between the limiting block 2 and the groove 11. To ensure a tight connection between the limiting block 2 and the groove 11, a sealing element can be sandwiched between the groove 11 and the limiting block 2. Setting a sealing element also prevents the sample from flowing into the groove 11 due to its own fluidity or improper operation by the operator, thus affecting the shape of the sample manufactured by the mold. Setting a sealing element ensures the manufacturing quality of the sample. The sealing element can be set on the groove wall of the groove 11, and can be a sealing strip or a sealing gasket, etc.
[0036] When the sample to be prepared is a material with poor flowability, first assemble multiple limiting blocks 2 and the sample preparation base 1. After assembly, place the sample preparation mold horizontally on the test platform, and then place the sample to be prepared in the sample preparation space 3. At this time, it is necessary to use tools such as scrapers to adjust the flatness of the sample to be prepared in time. After the sample to be prepared completely fills the sample preparation space 3, scrape off the excess sample material so that the upper surface of the sample to be prepared is flush with the top surface of the limiting blocks 2. The excess sample material can be scraped off with tools such as scrapers according to the actual required sample length. Then, place the sample preparation mold with the sample to be prepared in a specific environment for curing. After curing, remove the multiple limiting blocks 2 from the sample preparation base 1, and then remove the sample from the sample preparation base 1. Use sandpaper or other tools to lightly sand the sample as needed until all surfaces of the sample are smooth.
[0037] The sample to be prepared can be an adhesive used for bonding and sealing. In the aerospace industry, before the adhesive is officially used, it needs to be made into a standard sample and then subjected to a 60-second vertical burning performance test to test the flame retardant performance of the adhesive. When making standard adhesive samples using the sample preparation mold proposed in this utility model, the limiting block 2 is a rectangular block, the spacing between adjacent limiting blocks 2 is between 74mm and 78mm, the size of the limiting block 2 protruding from the bearing plate surface is between 3.13mm and 3.23mm, and five limiting blocks 2 are provided to simultaneously produce a sample quantity (3) that meets the test standard and to add extra spare samples.
[0038] When the sample to be prepared is a highly fluid sample material, baffles can be detachably connected to both sides of the sample preparation base 1 along the first direction as needed. The height of the baffles is not less than the size of the limit block 2 protruding from the bearing plate. The baffles and the limit block 2 can form a four-sided enclosed space to restrict the flow of the sample to be prepared.
[0039] Example 2
[0040] This embodiment provides a sample preparation mold, and its components that are the same as or corresponding to those in Embodiment 1 are labeled with the same or corresponding reference numerals as those in Embodiment 1. For simplicity, only the differences between this embodiment and Embodiment 1 will be described below.
[0041] The difference between this embodiment and Embodiment 1 is that:
[0042] The sample preparation base 1 and the limiting block 2 are respectively provided with magnetic parts with opposite magnetic properties. The sample preparation base 1 and the limiting block 2 are connected by magnetic force. The operator does not need to do too much work. The connection between the two can be achieved simply by bringing the limiting block 2 close to the sample preparation base 1. The connection and disassembly of the limiting block 2 is convenient, and multiple disassembly and installation will not cause too much wear to the sample preparation base 1 or the limiting block 2.
[0043] Understandably, in practical applications, a groove 11 can be made on the sample base 1, and then magnetic parts with opposite magnetic properties can be set on the bottom of the groove 11 and the bottom surface of the limiting block 2, which can not only enhance the connection stability between the limiting block 2 and the sample base 1, but also simplify the installation and disassembly process of the limiting block 2.
[0044] Example 3
[0045] This embodiment provides a sample preparation mold, and its components that are the same as or corresponding to those in Embodiment 1 are labeled with the same or corresponding reference numerals as those in Embodiment 1. For simplicity, only the differences between this embodiment and Embodiment 1 will be described below.
[0046] The difference between this embodiment and Embodiment 1 is that the limiting block 2 is provided with two clamping blocks, and in the second direction, the sample base 1 is clamped between the two clamping blocks of the limiting block 2. The clamping blocks can restrict the movement of the limiting block 2 in the second direction, avoiding problems such as deviation in the size or irregular shape of the sample to be made due to changes in the position of the limiting block 2. The clamping blocks can improve the sample making accuracy of the sample making mold.
[0047] Specifically, the mounting block can be provided with an elastic pad. In the second direction, the elastic pad is sandwiched between the mounting block and the sample preparation base 1. The elastic pad can ensure a tight connection between the limiting block 2 and the sample preparation base 1, and prevent the mounting block from failing to secure the limiting block 2 to the sample preparation base 1 due to processing errors. The elastic pad can be made of rubber.
[0048] More specifically, the two mounting blocks are located at the two ends of the limiting block 2 respectively. In the second direction, the two mounting blocks can restrict the position movement of the limiting block 2 from two different positions, thereby enhancing the connection stability between the limiting block 2 and the sample base 1.
[0049] It is understood that the above embodiments can be selectively combined as needed, provided that the combination of these technical features does not contradict each other. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. These embodiments not explicitly written should also be considered to be within the scope of this specification.
[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A sample-making mold, characterized in that, include: Sample preparation base (1), wherein the sample preparation base (1) is provided with a bearing plate surface; Multiple limiting blocks (2) are arranged parallel to each other and spaced apart in sequence along a first direction. They are detachably disposed on the bearing plate surface. Two adjacent limiting blocks (2) are arranged on the bearing plate surface to form a sample preparation space (3). Multiple limiting blocks (2) are arranged on the bearing plate surface to form multiple sample preparation spaces (3). The sample preparation spaces (3) are arranged through in a second direction. The first direction and the second direction are arranged at an angle and are both parallel to the bearing plate surface.
2. The sample preparation mold according to claim 1, characterized in that, The limiting block (2) and the sample preparation base (1) are engaged.
3. The sample preparation mold according to claim 2, characterized in that, The bearing plate has multiple grooves (11) on its surface, and the multiple limiting blocks (2) correspond one-to-one with the multiple grooves (11). The limiting blocks (2) are fitted into the grooves (11).
4. The sample preparation mold according to claim 3, characterized in that, The groove (11) is provided through in the second direction, and the length of the limiting block (2) is greater than the length of the groove (11).
5. The sample preparation mold according to claim 3, characterized in that, The sample preparation mold also includes a fastener, one end of which passes through the groove (11) into the limiting block (2), and the other end presses against the sample preparation base (1).
6. The sample preparation mold according to claim 3, characterized in that, The sample preparation mold also includes a sealing element, which is sandwiched between the groove (11) and the limiting block (2).
7. The sample preparation mold according to claim 1, characterized in that, The sample preparation base (1) and the limiting block (2) are respectively provided with magnetic parts with opposite magnetic properties.
8. The sample preparation mold according to claim 1, characterized in that, The limiting block (2) is provided with two mounting blocks. In the second direction, the sample base (1) is sandwiched between the two mounting blocks of the limiting block (2).
9. The sample preparation mold according to claim 8, characterized in that, An elastic pad is provided on the mounting block, and in the second direction, the elastic pad is sandwiched between the mounting block and the sample preparation base.
10. The sample-making mold according to any one of claims 1-9, characterized in that, The material of both the bearing plate and the limiting block (2) includes polytetrafluoroethylene.